package com.webserver.core;

import com.webserver.http.HttpServeletRequest;
import com.webserver.http.HttpServeletResponse;

import java.io.File;
import java.net.URISyntaxException;

public class DispatcherServlet {
    //单例
    private static DispatcherServlet instance = new DispatcherServlet();
    private DispatcherServlet() {}
    public static DispatcherServlet getInstance(){ return instance; }

    //找到类加载路径的static目录
    private static File root;
    private static File staticDir;
    static {
        try {
            root = new File(
              DispatcherServlet.class.getClassLoader().getResource(".").toURI()
            );
            staticDir = new File(root,"static");
        } catch (URISyntaxException e) {
            e.printStackTrace();
        }
    }
   public void service(HttpServeletRequest request,HttpServeletResponse response){
        String path = request.getUri();
        File file = new File(staticDir,path);
        if (file.isFile()){
            response.setContentFile(file);
        }else {
            response.setStatusCode(404);
            response.setStatusReason("NotFound");
            file = new File(staticDir,"/404.html");
            response.setContentFile(file);
        }
   }



}
